/* ========================================================================
   FCC styles
   1. Reset
   2. Design tokens (CSS custom properties)
   3. Base elements
   4. Layout primitives
   5. Components
   6. Page-specific overrides
   7. Media queries
   ======================================================================== */

/* 1. Reset ---------------------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; padding: 0; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body { min-height: 100vh; line-height: 1.6; -webkit-font-smoothing: antialiased; }
img, picture, svg, video { display: block; max-width: 100%; height: auto; }
input, button, textarea, select { font: inherit; color: inherit; }
button { background: none; border: none; cursor: pointer; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }

/* 2. Design tokens -------------------------------------------------------- */
:root {
  --color-white: #ffffff;
  --color-black: #000000;
  --color-orange: #ff751f;
  --color-orange-dark: #d9631a;
  --color-gray-50: #f5f5f5;
  --color-gray-200: #e5e5e5;
  --color-gray-500: #737373;
  --color-gray-700: #404040;

  --font-display: "Oswald", "Arial Narrow", sans-serif;
  --font-body: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;

  --max-width: 1280px;
  --section-pad-y: 96px;
  --section-pad-x: 32px;
  --gap-md: 32px;
  --gap-lg: 48px;
  --radius-sm: 4px;
  --radius-md: 8px;

  --header-h: 80px;
  --transition: 200ms ease;
}

/* 3. Base elements -------------------------------------------------------- */
body {
  font-family: var(--font-body);
  font-size: 16px;
  color: var(--color-black);
  background: var(--color-white);
}

h1, h2, h3 {
  font-family: var(--font-display);
  font-weight: 700;
  text-transform: uppercase;
  line-height: 1.1;
  letter-spacing: 0.01em;
}

h1 { font-size: clamp(2.5rem, 5vw, 4rem); }
h2 { font-size: clamp(2rem, 3.5vw, 3rem); }
h3 { font-size: clamp(1.25rem, 2vw, 1.5rem); }

p { max-width: 72ch; }

a:hover, a:focus-visible { color: var(--color-orange); }

:focus-visible {
  outline: 3px solid var(--color-orange);
  outline-offset: 2px;
}

.skip-link {
  position: absolute;
  top: -100px;
  left: 16px;
  background: var(--color-black);
  color: var(--color-white);
  padding: 12px 16px;
  z-index: 1000;
  border-radius: var(--radius-sm);
}
.skip-link:focus { top: 16px; color: var(--color-white); }

/* 4. Layout primitives ---------------------------------------------------- */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin-inline: auto;
  padding-inline: var(--section-pad-x);
}

.section {
  padding-block: var(--section-pad-y);
}

.section--dark {
  background: var(--color-black);
  color: var(--color-white);
}

.section--gray {
  background: var(--color-gray-50);
}

.section-eyebrow {
  display: inline-block;
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 0.875rem;
  letter-spacing: 0.15em;
  color: var(--color-orange);
  text-transform: uppercase;
  margin-bottom: 16px;
}

.section-title {
  margin-bottom: 24px;
}

.section-lead {
  font-size: 1.125rem;
  color: var(--color-gray-700);
  margin-bottom: 48px;
}

.section--dark .section-lead { color: var(--color-gray-200); }

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--gap-md);
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: var(--gap-md);
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--gap-lg);
  align-items: center;
}

.split--reverse > :first-child { order: 2; }

@media (max-width: 900px) {
  :root { --section-pad-y: 56px; --section-pad-x: 24px; }
  .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .grid-2 { grid-template-columns: 1fr; }
  .split--reverse > :first-child { order: 0; }
}

/* 5. Components ----------------------------------------------------------- */

/* 5.1 Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 28px;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.9375rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  border-radius: var(--radius-sm);
  transition: var(--transition);
  cursor: pointer;
  white-space: nowrap;
}
.btn-primary { background: var(--color-orange); color: var(--color-white); }
.btn-primary:hover, .btn-primary:focus-visible { background: var(--color-orange-dark); color: var(--color-white); }
.btn-ghost { background: transparent; color: var(--color-black); border: 2px solid var(--color-black); }
.btn-ghost:hover, .btn-ghost:focus-visible { border-color: var(--color-orange); color: var(--color-orange); }
.btn-ghost--light { color: var(--color-white); border-color: var(--color-white); }
.btn-ghost--light:hover, .btn-ghost--light:focus-visible { color: var(--color-orange); border-color: var(--color-orange); }

/* 5.2 Site header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--color-white);
  border-bottom: 1px solid var(--color-gray-200);
  height: var(--header-h);
}
.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}
.site-header__brand {
  display: inline-flex;
  align-items: center;
  height: 100%;
}
.site-header__brand img {
  display: block;
  height: 56px;
  width: auto;
}
.site-nav { display: flex; align-items: center; gap: 32px; }
.site-nav__list { display: flex; gap: 28px; align-items: center; }
.site-nav__list > li { position: relative; }
.site-nav__link {
  font-weight: 500;
  font-size: 0.9375rem;
  padding: 8px 0;
  position: relative;
}
.site-nav__link--has-children {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.site-nav__caret {
  width: 10px;
  height: 10px;
  transition: transform var(--transition);
}
.site-nav__item--has-children:hover .site-nav__caret,
.site-nav__item--has-children:focus-within .site-nav__caret { transform: rotate(180deg); }
.site-nav__submenu {
  position: absolute;
  top: 100%;
  left: -16px;
  background: var(--color-white);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-md);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.10);
  min-width: 280px;
  padding: 8px;
  list-style: none;
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: opacity var(--transition), transform var(--transition), visibility 0s linear var(--transition);
  z-index: 110;
}
.site-nav__item--has-children:hover .site-nav__submenu,
.site-nav__item--has-children:focus-within .site-nav__submenu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
  transition: opacity var(--transition), transform var(--transition), visibility 0s;
}
.site-nav__submenu li { margin: 0; }
.site-nav__submenu a {
  display: block;
  padding: 10px 14px;
  font-size: 0.9375rem;
  color: var(--color-gray-700);
  border-radius: var(--radius-sm);
  border-left: 3px solid transparent;
  transition: var(--transition);
}
.site-nav__submenu a:hover, .site-nav__submenu a:focus-visible {
  background: var(--color-gray-50);
  color: var(--color-orange);
  border-left-color: var(--color-orange);
}
.site-nav__link[aria-current="page"]::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: 0;
  height: 2px; background: var(--color-orange);
}
.site-nav__cta { padding: 10px 20px; }
.site-header__toggle {
  display: none;
  width: 44px; height: 44px;
  align-items: center; justify-content: center;
}
.site-header__toggle svg { width: 28px; height: 28px; }

@media (max-width: 900px) {
  .site-header__toggle { display: inline-flex; }
  .site-nav {
    position: fixed;
    inset: var(--header-h) 0 0 0;
    background: var(--color-white);
    flex-direction: column;
    align-items: stretch;
    padding: 16px 0 24px;
    gap: 0;
    transform: translateX(100%);
    transition: transform var(--transition);
    overflow-y: auto;
  }
  .site-nav[data-open="true"] { transform: translateX(0); }
  .site-nav__list { flex-direction: column; gap: 0; width: 100%; }
  .site-nav__list li { width: 100%; }
  .site-nav__link {
    display: block;
    padding: 18px 24px 18px 21px;
    font-size: 1.0625rem;
    border-bottom: 1px solid var(--color-gray-200);
    border-left: 3px solid transparent;
    transition: background var(--transition), color var(--transition), border-color var(--transition);
  }
  .site-nav__link:hover, .site-nav__link:focus-visible {
    background: var(--color-gray-50);
    color: var(--color-orange);
  }
  .site-nav__link[aria-current="page"] {
    color: var(--color-orange);
    border-left-color: var(--color-orange);
    background: var(--color-gray-50);
  }
  .site-nav__link[aria-current="page"]::after { content: none; }
  .site-nav__cta { margin: 24px; }

  /* Mobile: submenu is always visible, indented under Services */
  .site-nav__submenu {
    position: static;
    opacity: 1;
    visibility: visible;
    transform: none;
    box-shadow: none;
    border: none;
    background: transparent;
    padding: 0;
    min-width: 0;
  }
  .site-nav__caret { display: none; }
  .site-nav__submenu a {
    padding: 14px 24px 14px 44px;
    border-bottom: 1px solid var(--color-gray-200);
    border-left: none;
    border-radius: 0;
    color: var(--color-gray-700);
    font-size: 0.9375rem;
    background: var(--color-gray-50);
  }
  .site-nav__submenu a:hover, .site-nav__submenu a:focus-visible {
    background: var(--color-gray-200);
    color: var(--color-orange);
    border-left: none;
  }
}

/* 5.3 Site footer */
.site-footer {
  background: var(--color-black);
  color: var(--color-white);
  padding-block: 64px 32px;
  margin-top: 0;
}
.site-footer__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--gap-md);
  margin-bottom: 48px;
}
.site-footer__brand {
  margin-bottom: 16px;
}
.site-footer__brand img {
  display: block;
  height: 88px;
  width: auto;
}
.site-footer__about p {
  color: var(--color-gray-200);
  font-size: 0.9375rem;
  max-width: 36ch;
}
.site-footer__social {
  display: flex;
  gap: 12px;
  margin-top: 24px;
  padding: 0;
  list-style: none;
}
.site-footer__social li { margin: 0; }
.site-footer__social a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(255, 255, 255, 0.18);
  color: var(--color-white);
  transition: var(--transition);
}
.site-footer__social a:hover, .site-footer__social a:focus-visible {
  color: var(--color-orange);
  border-color: var(--color-orange);
  background: rgba(255, 117, 31, 0.1);
}
.site-footer__social svg {
  width: 18px;
  height: 18px;
  display: block;
}
.site-footer__col-title {
  font-family: var(--font-display);
  font-size: 0.875rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-orange);
  margin-bottom: 20px;
}
.site-footer ul li { margin-bottom: 12px; font-size: 0.9375rem; color: var(--color-gray-200); }
.site-footer a:hover, .site-footer a:focus-visible { color: var(--color-orange); }
.site-footer__bottom {
  border-top: 1px solid var(--color-gray-700);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
  font-size: 0.8125rem;
  color: var(--color-gray-500);
}
@media (max-width: 900px) {
  .site-footer__grid { grid-template-columns: 1fr 1fr; }
  .site-footer__about { grid-column: 1 / -1; }
}
@media (max-width: 600px) {
  .site-footer__grid { grid-template-columns: 1fr; }
  .site-footer__about { grid-column: auto; }
}

/* 5.4 Service card */
.service-card {
  background: var(--color-gray-50);
  padding: 32px;
  border-radius: var(--radius-md);
  border-top: 4px solid var(--color-orange);
  display: flex;
  flex-direction: column;
  gap: 12px;
  height: 100%;
}
.service-card__icon {
  width: 48px; height: 48px;
  color: var(--color-orange);
  margin-bottom: 8px;
}
.service-card__icon svg { width: 100%; height: 100%; }
.service-card__title { font-size: 1.25rem; }
.service-card__body { color: var(--color-gray-700); font-size: 0.9375rem; }
.service-card__link {
  margin-top: auto;
  padding-top: 12px;
  font-weight: 600;
  color: var(--color-orange);
  font-size: 0.875rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

/* 5.5 Value prop block */
.value-prop {
  display: flex;
  flex-direction: column;
  gap: 12px;
  text-align: left;
}
.value-prop__icon { width: 40px; height: 40px; color: var(--color-orange); }
.value-prop__title { font-size: 1.125rem; }
.value-prop__body { color: var(--color-gray-700); font-size: 0.9375rem; }

/* 5.6 Stat block */
.stat {
  display: flex;
  flex-direction: column;
  gap: 8px;
  text-align: left;
}
.stat__num {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(3rem, 6vw, 4.5rem);
  color: var(--color-orange);
  line-height: 1;
}
.stat__label {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 0.875rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-white);
}
.section--gray .stat__label { color: var(--color-black); }

/* 5.7 CTA strip */
.cta-strip {
  background: var(--color-orange);
  color: var(--color-white);
  padding-block: 64px;
  text-align: center;
}
.cta-strip__title {
  color: var(--color-white);
  margin-bottom: 24px;
}
.cta-strip .btn-ghost--light { background: transparent; }

/* 5.8 Image-text split */
.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--gap-lg);
  align-items: center;
  padding-block: 48px;
  scroll-margin-top: calc(var(--header-h) + 16px);
}
.split__media {
  aspect-ratio: 4 / 3;
  background: var(--color-gray-200) center/cover no-repeat;
  border-radius: var(--radius-md);
}
.split__title { margin-bottom: 12px; }
.split__lede {
  font-style: italic;
  color: var(--color-orange);
  font-weight: 500;
  margin-bottom: 20px;
}
.split__body { color: var(--color-gray-700); margin-bottom: 24px; }
.split__list { display: grid; gap: 10px; }
.split__list li {
  position: relative;
  padding-left: 24px;
  font-size: 0.9375rem;
}
.split__list li::before {
  content: "";
  position: absolute;
  left: 0; top: 0.6em;
  width: 12px; height: 2px;
  background: var(--color-orange);
}
@media (max-width: 900px) {
  .split { grid-template-columns: 1fr; }
  .split--reverse > :first-child { order: 0; }
}

/* 6. Page-specific overrides --------------------------------------------- */

/* 6.1 Home hero */
.hero {
  position: relative;
  min-height: clamp(420px, 70vh, 800px);
  display: flex;
  align-items: center;
  background: var(--color-black) center/cover no-repeat;
  background-image: linear-gradient(rgba(0,0,0,0.55), rgba(0,0,0,0.55)), url("images/hero-home.jpg");
  color: var(--color-white);
}
.hero__inner { padding-block: 96px; }
.hero__eyebrow {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 0.875rem;
  letter-spacing: 0.2em;
  color: var(--color-orange);
  text-transform: uppercase;
  margin-bottom: 20px;
}
.hero__title {
  color: var(--color-white);
  max-width: 18ch;
  margin-bottom: 24px;
}
.hero__sub {
  font-size: 1.25rem;
  color: var(--color-gray-200);
  max-width: 60ch;
  margin-bottom: 40px;
}
.hero__ctas { display: flex; gap: 16px; flex-wrap: wrap; }

/* Hero variant for inner pages */
.hero--inner {
  min-height: clamp(420px, 70vh, 800px);
}
.hero--inner .hero__inner { padding-block: 80px; }
.hero--inner .hero__title { max-width: 22ch; }

/* 6.1.5 Fiber Light Pulse — animated backdrop for cta-strip */
.cta-strip {
  position: relative;
  overflow: hidden;
  background: radial-gradient(ellipse at 50% 0%, rgba(255, 117, 31, 0.18) 0%, transparent 60%),
              linear-gradient(180deg, #0a0a0a 0%, #1a1a1a 100%);
  color: var(--color-white);
}
.cta-strip > .container { position: relative; z-index: 2; }
.cta-strip__pulses {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 1;
  /* 5 fiber strands evenly distributed at 10%, 30%, 50%, 70%, 90% */
  background-image: repeating-linear-gradient(
    180deg,
    transparent 0,
    transparent calc(10% - 0.5px),
    rgba(255, 117, 31, 0.14) calc(10% - 0.5px),
    rgba(255, 117, 31, 0.14) calc(10% + 0.5px),
    transparent calc(10% + 0.5px),
    transparent 20%
  );
}
.cta-strip__pulse {
  position: absolute;
  left: -260px;
  height: 4px;
  width: 240px;
  margin-top: -2px; /* center the 4px pulse on its strand line */
  background: linear-gradient(90deg, transparent, rgba(255, 117, 31, 0.95), transparent);
  filter: blur(0.5px);
  box-shadow: 0 0 16px rgba(255, 117, 31, 0.85), 0 0 32px rgba(255, 117, 31, 0.5);
  animation: fiber-pulse 7s linear infinite;
}
/* Each pulse rides directly on a strand line */
.cta-strip__pulse:nth-child(1) { top: 10%; animation-duration:  6s;   animation-delay: 0s;   }
.cta-strip__pulse:nth-child(2) { top: 30%; animation-duration:  9s;   animation-delay: 1.5s; }
.cta-strip__pulse:nth-child(3) { top: 50%; animation-duration:  5.5s; animation-delay: 3s;   }
.cta-strip__pulse:nth-child(4) { top: 70%; animation-duration:  7.5s; animation-delay: 0.8s; }
.cta-strip__pulse:nth-child(5) { top: 90%; animation-duration: 10s;   animation-delay: 2.4s; }
@keyframes fiber-pulse {
  0%   { transform: translateX(0); }
  100% { transform: translateX(calc(100vw + 260px)); }
}
.cta-strip__title { color: var(--color-white); }
.cta-strip .btn-ghost--light:hover,
.cta-strip .btn-ghost--light:focus-visible {
  border-color: var(--color-orange);
  color: var(--color-orange);
  box-shadow: 0 0 24px rgba(255, 117, 31, 0.6);
}
@media (prefers-reduced-motion: reduce) {
  .cta-strip__pulse { animation: none; opacity: 0.4; }
}

/* 6.1.6 Signal Wave — infinitely-tiling background. One bold sine wave, one full cycle wide,
   repeated via repeat-x and scrolled by exactly one tile width for guaranteed seamless loop. */
.section--waves {
  position: relative;
  overflow: hidden;
}
.section--waves > .container { position: relative; z-index: 1; }
.signal-wave {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background-image: url("data:image/svg+xml;utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 600 200' preserveAspectRatio='none'%3E%3Cpath d='M0 100 Q 150 0 300 100 T 600 100' stroke='%23ff751f' stroke-width='2' fill='none' opacity='0.4'/%3E%3C/svg%3E");
  background-repeat: repeat-x;
  background-position: center;
  background-size: 600px 70%;
  animation: signal-wave-scroll 22s linear infinite;
}
@keyframes signal-wave-scroll {
  from { background-position-x: 0; }
  to   { background-position-x: -600px; }
}
@media (prefers-reduced-motion: reduce) {
  .signal-wave { animation: none; }
}

/* 6.1.7 Network Mesh — full-width band */
.network-mesh-band {
  position: relative;
  overflow: hidden;
  background: linear-gradient(180deg, #0a0a0a 0%, #141414 100%);
  color: var(--color-white);
  padding-block: 96px;
  text-align: center;
}
.network-mesh {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 0;
}
.network-mesh svg { width: 100%; height: 100%; display: block; }
.network-mesh__edge {
  fill: none;
  stroke: rgba(255, 117, 31, 0.28);
  stroke-width: 1;
  stroke-dasharray: 4 8;
  animation: mesh-flow 3s linear infinite;
}
.network-mesh__edge--slow { animation-duration: 5s; }
.network-mesh__edge--reverse { animation-direction: reverse; }
.network-mesh__node {
  fill: rgba(255, 117, 31, 0.65);
}
.network-mesh__node--pulse {
  animation: mesh-node-pulse 2.4s ease-in-out infinite;
  transform-origin: center;
  transform-box: fill-box;
}
@keyframes mesh-flow { to { stroke-dashoffset: -24; } }
@keyframes mesh-node-pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%      { opacity: 0.5; transform: scale(1.6); }
}
.network-mesh-band > .container { position: relative; z-index: 1; }
.network-mesh-band__eyebrow {
  display: inline-block;
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 0.875rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-orange);
  margin-bottom: 16px;
}
.network-mesh-band__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(2rem, 4vw, 3.25rem);
  text-transform: uppercase;
  line-height: 1.1;
  margin: 0 auto;
  max-width: 22ch;
}
.network-mesh-band__title em {
  color: var(--color-orange);
  font-style: normal;
}
@media (prefers-reduced-motion: reduce) {
  .network-mesh__edge,
  .network-mesh__node--pulse { animation: none; }
}

/* 6.2 Buyer-category marquee */
.client-marquee {
  margin-top: 48px;
  overflow: hidden;
  -webkit-mask-image: linear-gradient(90deg, transparent 0, black 80px, black calc(100% - 80px), transparent 100%);
          mask-image: linear-gradient(90deg, transparent 0, black 80px, black calc(100% - 80px), transparent 100%);
}
.client-marquee__track {
  display: flex;
  width: max-content;
  gap: 24px;
  padding: 4px 0;
  list-style: none;
  margin: 0;
  animation: marquee-scroll 60s linear infinite;
}
.client-marquee:hover .client-marquee__track,
.client-marquee:focus-within .client-marquee__track { animation-play-state: paused; }
.client-marquee__item {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  padding: 18px 32px;
  background: var(--color-white);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-md);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-black);
  white-space: nowrap;
  transition: border-color var(--transition), color var(--transition);
}
.client-marquee__item::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-orange);
  flex: none;
}
.client-marquee__item:hover {
  border-color: var(--color-orange);
  color: var(--color-orange);
}
@keyframes marquee-scroll {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}
@media (prefers-reduced-motion: reduce) {
  .client-marquee__track { animation: none; flex-wrap: wrap; gap: 16px; padding: 0 32px; }
}

/* 6.2.5 Legacy client logo placeholder strip (kept for any other use) */
.logos {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
  align-items: center;
  justify-content: space-between;
  padding-block: 24px;
}
.logos__item {
  flex: 1 1 140px;
  height: 56px;
  background: var(--color-gray-200);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-gray-500);
  font-family: var(--font-display);
  font-size: 0.75rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

/* 6.3 Footprint map */
.footprint {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  text-align: center;
}
.footprint__map {
  max-width: 960px;
  margin-inline: auto;
  width: 100%;
}
.footprint__map svg { width: 100%; height: auto; }
.footprint__caption { color: var(--color-gray-700); margin-inline: auto; }

/* 6.3.4 Breadcrumb */
.breadcrumb {
  background: var(--color-gray-50);
  padding-block: 16px;
  border-bottom: 1px solid var(--color-gray-200);
  font-size: 0.875rem;
}
.breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  list-style: none;
  padding: 0; margin: 0;
}
.breadcrumb li { color: var(--color-gray-500); }
.breadcrumb li + li::before {
  content: "/";
  margin-right: 8px;
  color: var(--color-gray-200);
}
.breadcrumb li[aria-current="page"] { color: var(--color-black); font-weight: 500; }
.breadcrumb a { color: var(--color-gray-700); }
.breadcrumb a:hover { color: var(--color-orange); }

/* 6.3.45 Service detail pages */
.service-detail h2.section-title {
  font-size: clamp(1.5rem, 2.5vw, 2rem);
  margin-top: 32px;
}
.service-detail h2.section-title:first-child { margin-top: 0; }
.service-detail p { margin-bottom: 16px; }
.check-list {
  list-style: none;
  padding: 0; margin: 16px 0 32px;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px 32px;
}
@media (max-width: 700px) {
  .check-list { grid-template-columns: 1fr; }
}
.check-list li {
  position: relative;
  padding-left: 24px;
  font-size: 0.9375rem;
  color: var(--color-gray-700);
}
.check-list li::before {
  content: "";
  position: absolute;
  left: 0; top: 0.5em;
  width: 12px; height: 8px;
  border-left: 2px solid var(--color-orange);
  border-bottom: 2px solid var(--color-orange);
  transform: rotate(-45deg);
}

/* Service cards as linked anchors */
.service-card--linked {
  display: block;
  text-decoration: none;
  color: inherit;
  cursor: pointer;
}
.service-card--linked:hover .service-card__cta,
.service-card--linked:focus-visible .service-card__cta { color: var(--color-orange-dark); }
.service-card__cta {
  display: inline-block;
  margin-top: 16px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.875rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-orange);
}

/* Related services grid (on service detail pages) */
.related-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--gap-md);
  margin-top: 32px;
}
@media (max-width: 900px) {
  .related-grid { grid-template-columns: 1fr; }
}
.related-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--color-white);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-md);
  padding: 20px 24px;
  font-family: var(--font-display);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--color-black);
  transition: var(--transition);
}
.related-card:hover, .related-card:focus-visible {
  border-color: var(--color-orange);
  color: var(--color-orange);
  transform: translateY(-2px);
}
.related-card__arrow {
  font-size: 1.25rem;
  color: var(--color-orange);
}

/* 6.3.46 Work / project profile cards */
.hero--work {
  background: var(--color-black);
  background-image:
    radial-gradient(ellipse at 70% 30%, rgba(255, 117, 31, 0.30) 0%, rgba(255, 117, 31, 0) 55%),
    linear-gradient(180deg, #1a1a1a 0%, #000000 100%);
}
.work-card {
  background: var(--color-white);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-md);
  padding: 32px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: var(--transition);
}
.work-card:hover {
  border-color: var(--color-orange);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.06);
}
.work-card__tag {
  display: inline-block;
  align-self: flex-start;
  font-family: var(--font-display);
  font-size: 0.75rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-orange);
  background: rgba(255, 117, 31, 0.08);
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  margin-bottom: 4px;
}
.work-card__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.375rem;
  text-transform: uppercase;
  color: var(--color-black);
}
.work-card__lede {
  color: var(--color-gray-700);
  font-size: 0.9375rem;
  margin: 0;
}
.work-card__metrics {
  list-style: none;
  padding: 12px 0 0; margin: 0;
  border-top: 1px solid var(--color-gray-200);
  margin-top: 8px;
}
.work-card__metrics li {
  font-size: 0.875rem;
  color: var(--color-gray-700);
  padding: 6px 0;
}
.work-card__metrics strong {
  color: var(--color-black);
  font-weight: 600;
  margin-right: 6px;
}

/* 6.3.46.5 Service detail feature photo */
.service-feature {
  margin: 32px 0 40px;
  border-radius: var(--radius-md);
  overflow: hidden;
}
.service-feature img {
  width: 100%;
  height: auto;
  display: block;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}
.service-feature figcaption {
  padding: 12px 16px;
  font-size: 0.875rem;
  color: var(--color-gray-700);
  background: var(--color-gray-50);
  border: 1px solid var(--color-gray-200);
  border-top: 0;
}

/* 6.3.47 Case study (work detail) page */
.hero--case-study {
  background: var(--color-black);
  background-image:
    radial-gradient(ellipse at 20% 20%, rgba(255, 117, 31, 0.30) 0%, rgba(255, 117, 31, 0) 50%),
    radial-gradient(ellipse at 90% 80%, rgba(255, 117, 31, 0.18) 0%, rgba(255, 117, 31, 0) 55%),
    linear-gradient(180deg, #1a1a1a 0%, #000000 100%);
}
.case-study__tag {
  display: inline-block;
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 0.875rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-orange);
  margin-bottom: 16px;
}

.case-study__glance {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: var(--gap-md);
  border-block: 1px solid var(--color-gray-200);
  padding-block: 32px;
}
@media (max-width: 700px) {
  .case-study__glance { grid-template-columns: repeat(2, 1fr); }
}
.case-study__metric {
  text-align: center;
}
.case-study__metric-num {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(2rem, 4vw, 3rem);
  color: var(--color-orange);
  line-height: 1;
}
.case-study__metric-label {
  font-family: var(--font-display);
  font-size: 0.75rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-gray-700);
  margin-top: 8px;
}

.case-study__body {
  max-width: 800px;
  margin-inline: auto;
}
.case-study__chapter {
  margin-bottom: 48px;
}
.case-study__chapter:last-child { margin-bottom: 0; }
.case-study__chapter h2.section-title {
  font-size: clamp(1.5rem, 2.5vw, 2.25rem);
  margin-bottom: 16px;
}
.case-study__chapter p {
  margin-bottom: 16px;
}

.case-study__gallery {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin: 24px 0 0;
}
@media (max-width: 700px) {
  .case-study__gallery { grid-template-columns: 1fr; }
}
.case-study__gallery figure { margin: 0; }
.case-study__gallery img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border-radius: var(--radius-md);
  display: block;
}
.case-study__gallery figcaption {
  font-size: 0.8125rem;
  color: var(--color-gray-700);
  margin-top: 8px;
  line-height: 1.5;
}

.case-study__quote {
  max-width: 720px;
  margin-inline: auto;
  padding: 32px;
  border-left: 4px solid var(--color-orange);
  background: var(--color-gray-50);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
}
.case-study__quote blockquote {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 1.375rem;
  line-height: 1.4;
  color: var(--color-black);
  margin-bottom: 24px;
}
.case-study__quote figcaption {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.case-study__quote-name {
  font-weight: 700;
  color: var(--color-black);
}
.case-study__quote-title {
  font-size: 0.875rem;
  color: var(--color-gray-500);
}

/* Work card linked variant */
.work-card--linked {
  display: flex;
  text-decoration: none;
  color: inherit;
}
.work-card--linked .work-card__title { color: var(--color-black); transition: var(--transition); }
.work-card--linked:hover .work-card__title { color: var(--color-orange); }
.work-card--linked::after {
  content: "View Case Study \2192";
  display: inline-block;
  margin-top: 12px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.8125rem;
  letter-spacing: 0.1em;
  color: var(--color-orange);
}

/* 6.3.5 Careers page */
.hero--careers,
.hero--contact {
  background: var(--color-black);
  background-image:
    radial-gradient(ellipse at 30% 20%, rgba(255, 117, 31, 0.35) 0%, rgba(255, 117, 31, 0) 55%),
    radial-gradient(ellipse at 80% 90%, rgba(255, 117, 31, 0.18) 0%, rgba(255, 117, 31, 0) 60%),
    linear-gradient(180deg, #1a1a1a 0%, #000000 100%);
}

.role-card {
  background: var(--color-white);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-md);
  padding: 28px;
  transition: var(--transition);
}
.role-card:hover {
  border-color: var(--color-orange);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.06);
}
.role-card__title {
  font-family: var(--font-display);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.02em;
  margin-bottom: 16px;
  color: var(--color-black);
  position: relative;
  padding-bottom: 12px;
}
.role-card__title::after {
  content: "";
  position: absolute;
  left: 0; bottom: 0;
  width: 36px; height: 3px;
  background: var(--color-orange);
}
.role-card__list {
  list-style: none;
  padding: 0; margin: 0;
}
.role-card__list li {
  font-size: 0.9375rem;
  color: var(--color-gray-700);
  padding-left: 18px;
  position: relative;
  margin-bottom: 8px;
}
.role-card__list li::before {
  content: "";
  position: absolute;
  left: 0; top: 0.55em;
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--color-orange);
}

.careers-cta {
  max-width: 720px;
  margin-inline: auto;
  text-align: center;
}
.careers-cta .section-eyebrow,
.careers-cta .section-title { display: block; }
.careers-cta__lede {
  font-size: 1.0625rem;
  color: var(--color-gray-200);
  margin: 0 auto 32px;
  max-width: 60ch;
}
.careers-cta__actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 32px;
}
.careers-cta__note {
  font-size: 0.875rem;
  color: var(--color-gray-500);
  max-width: 50ch;
  margin: 0 auto;
}

/* 6.4 Leadership */
.leadership-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: var(--gap-md);
}
.leadership-grid--pair {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  max-width: 880px;
  margin-inline: auto;
  gap: var(--gap-lg);
}
.leadership-grid--core {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  max-width: 1100px;
  margin-inline: auto;
  gap: var(--gap-md);
}
@media (max-width: 900px) {
  .leadership-grid--core { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 600px) {
  .leadership-grid--core { grid-template-columns: 1fr; }
}
.leader {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.leader__photo {
  width: 100%;
  aspect-ratio: 1;
  background: var(--color-gray-200);
  border-radius: var(--radius-md);
  object-fit: cover;
  object-position: center top;
  display: block;
}
.leader__name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.125rem;
  text-transform: uppercase;
}
.leader__title {
  font-size: 0.875rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-orange);
}
.leader__bio { font-size: 0.9375rem; color: var(--color-gray-700); }

@media (max-width: 900px) { .leadership-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 600px) { .leadership-grid { grid-template-columns: 1fr; } }

/* 6.5 Standards list */
.standards-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px 32px;
  margin-top: 24px;
}
.standards-list li {
  font-family: var(--font-display);
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-white);
  position: relative;
  padding-left: 24px;
}
.standards-list li::before {
  content: "";
  position: absolute;
  left: 0; top: 50%;
  width: 12px; height: 2px;
  background: var(--color-orange);
}
@media (max-width: 600px) { .standards-list { grid-template-columns: 1fr; } }

/* 6.6 Process stepper */
.process {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: var(--gap-md);
  margin-top: 32px;
}
.process-step {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.process-step__num {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 3.5rem;
  line-height: 1;
  color: var(--color-orange);
}
.process-step__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.125rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}
.process-step__body {
  color: var(--color-gray-700);
  font-size: 0.9375rem;
}
@media (max-width: 900px) { .process { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 600px) { .process { grid-template-columns: 1fr; } }

/* 6.7 Contact page */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: var(--gap-lg);
  align-items: start;
}
.contact-info { display: flex; flex-direction: column; gap: 24px; }
.contact-info__group { }
.contact-info__label {
  font-family: var(--font-display);
  font-size: 0.875rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-orange);
  margin-bottom: 8px;
}
.contact-info__value { font-size: 1rem; color: var(--color-black); }
.contact-info__value a { color: var(--color-black); }

.form {
  background: var(--color-white);
  padding: 32px;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-gray-200);
}
.form-row { margin-bottom: 20px; }
.form-row--two { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-label {
  display: block;
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--color-gray-700);
  margin-bottom: 6px;
}
.form-required { color: var(--color-orange); }
.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-sm);
  background: var(--color-white);
  font-size: 1rem;
  transition: border-color var(--transition);
}
.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--color-orange);
  box-shadow: 0 0 0 3px rgba(226, 103, 45, 0.15);
}
.form-textarea { min-height: 140px; resize: vertical; }
.form-error {
  display: none;
  color: var(--color-orange);
  font-size: 0.8125rem;
  margin-top: 4px;
}
.form-input[aria-invalid="true"],
.form-select[aria-invalid="true"],
.form-textarea[aria-invalid="true"] { border-color: var(--color-orange); }
.form-input[aria-invalid="true"] + .form-error,
.form-select[aria-invalid="true"] + .form-error,
.form-textarea[aria-invalid="true"] + .form-error { display: block; }
.form-submit { width: 100%; }

@media (max-width: 900px) {
  .contact-grid { grid-template-columns: 1fr; }
  .form-row--two { grid-template-columns: 1fr; }
}

/* 6.8 Bid callout */
.bid-callout {
  border-left: 4px solid var(--color-orange);
  background: var(--color-gray-50);
  padding: 24px 32px;
  margin-top: 32px;
}
.bid-callout h3 {
  font-size: 1.125rem;
  margin-bottom: 8px;
}
.bid-callout p { color: var(--color-gray-700); }

/* 7. Media queries (final) ----------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

@media print {
  .site-header, .site-footer, .cta-strip { display: none; }
  .section { padding-block: 24px; }
  a { color: var(--color-black) !important; text-decoration: underline; }
}

/* Smooth-scroll offset for anchor jumps so sticky header doesn't cover the section title */
:target { scroll-margin-top: calc(var(--header-h) + 24px); }